Galvanized to resist rust and corrosion. Pipe Fitting Material / Malleable Iron Finish/Coating / Zinc Plated Class / Class 150 Fitting Side A Nominal Pipe Size / 1 in Fitting Side A Gender / Female Fitting Side A Type / NPT Fitting Side A Pipe Threading / 11 1/2 Fitting Side B Nominal Pipe Size / 1/2 in Fitting Side B Gender / Male Fitting Side B Type / NPT Fitting Side B Pipe Threading / 14 Color / White Standards / ASME B16.14, ASTM A197, FM Approved, IAPMO, UL Listed